It's reassuring to have a few tools with you. It's less appealing when 'just in case' becomes a pile of separate things to pack and carry. You want to feel prepared, without making every outing a packing chore.
With pliers and drivers built into one folding body, you can grip a part or tighten a loose fixing without packing each tool separately. Useful repair capability comes with you, while the built-in glass breaker adds an option for vehicle emergencies.
Seasoned outdoorsmen know versatile gear saves lives in emergencies. Don't get caught under-geared.
Fold it closed and clip it to your belt or pack. The tools stay together, so there's less to gather before you leave and fewer separate pieces to keep track of. You can head out feeling prepared, with useful ways to tackle a problem already packed.